Poggi Canyon (SDSNH locality 4288) ( of the United States)

Also known as Otay Ranch

Where: San Diego County, California (32.6° N, 117.0° W: paleocoordinates 32.5° N, 116.0° W)

• coordinate based on nearby landmark

• small collection-level geographic resolution

When: subunit 2 Member (San Diego Formation), Blancan (4.9 - 1.8 Ma)

• bed-level stratigraphic resolution

Environment/lithology: "channel"; sandstone

• "coarse-grained sandstone channel-fill horizon"

Size classes: macrofossils, mesofossils

Collection methods: bulk, sieve,

• "sampled by initial dry screening approximately 3000 pounds of bulk matrix through 24 mesh (0.7 mm) stainless steel screens and then water washing the resulting concentrate through the same mesh size"

Primary reference: H. M. Wagner, B. O. Riney, T. A. Deméré and D. R. Prothero. 2001. Magnetic stratigraphy and land mammal biochronology of the nonmarine facies of the Pliocene San Diego Formation, San Diego County, California. Magnetic Stratigraphy of the Pacific Coast Cenozoic (D. R. Prothero, ed.) 359-368 [J. Alroy/J. Alroy/J. Alroy]more details

Purpose of describing collection: biostratigraphic analysis

PaleoDB collection 28237: authorized by John Alroy, entered by John Alroy on 01.02.2003

Creative Commons license: CC BY (attribution)

Taxonomic list

Mammalia
 Rodentia - Heteromyidae
Perognathus sp. Maximillian 1839 pocket mouse
 Rodentia - Cricetidae
Reithrodontomys sp. Giglioli 1874 harvest mouse
Neotoma aff. fossilis Gidley 1922 pack rat
"Neotoma (Paraneotoma) nr. fossilis"
"Bensonomys meadensis" = Calomys (Bensonomys) meadensis Hibbard 1956 mouse
 Rodentia - Sciuridae
Neotamias sp. Howell 1929 chipmunk
 Lagomorpha - Leporidae
Hypolagus edensis Frick 1921 rabbit
 Theriamorpha - Soricidae
Notiosorex sp. Baird 1877 gray shrew
 Perissodactyla - Equidae
"Equus simplicidens" = Plesippus simplicidens
"Equus simplicidens" = Plesippus simplicidens Cope 1892 horse